We were not handling getelemenptr instructions of vector type before.
Since getelemenptr instructions for vector types follow the same rule as
getelementptr instructions for non-vector types, we can just handle them
in the same way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298028 91177308-0d34-0410-b5e6-96231b3b80d8